The apparent requirement of two hormones, alpha- and beta-ecdysone, for molting induction in insects.
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Biomedical subjects
Publications and source records attributed to U Clever.
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Fixation with picric acid or formaldehyde retains incorporated [(3)H]acetate which is lost after fixation with ethanol and acetic acid. Unlike [(3)H]uridine, [(3)H]acetate is diffusely incorporated into polytene chromosomes, and not preferentially into existing or newly induced puffs. It is suggested that puff formation does not include an acetylation of histones.
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